diff --git a/contrib/lax_der_parsing.c b/contrib/lax_der_parsing.c
index e177a0562dd2d..f71db4b53524c 100644
--- a/contrib/lax_der_parsing.c
+++ b/contrib/lax_der_parsing.c
@@ -112,7 +112,6 @@ int ecdsa_signature_parse_der_lax(const secp256k1_context* ctx, secp256k1_ecdsa_
         return 0;
     }
     spos = pos;
-    pos += slen;
 
     /* Ignore leading zeroes in R */
     while (rlen > 0 && input[rpos] == 0) {